package com.test.base.netty.createserver;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.string.StringEncoder;
import lombok.extern.slf4j.Slf4j;

import java.net.InetSocketAddress;

@Slf4j
public class ListenerForClient {
    public static void main(String[] args) throws InterruptedException {
        ChannelFuture channelFuture = new Bootstrap()
                .group(new NioEventLoopGroup())
                .channel(NioSocketChannel.class)
                .handler(new ChannelInitializer<NioSocketChannel>() {
                    // 设置建立连接后调用
                    @Override
                    protected void initChannel(NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new StringEncoder());
                    }
                })
                .connect(new InetSocketAddress("127.0.0.1", 8080));

        // 因为没有sync，这次消息发送是失败的
//        Channel channel = channelFuture.channel();
//        channel.writeAndFlush("asd");

        channelFuture.addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                Channel channel = future.channel();
                log.info("{}", channel);
                channel.writeAndFlush("hi hello!!");
            }
        });
    }
}
